Need help ... with tire size

kennyray712 · 07-22-2017, 08:19 AM

Thanks for replying
07 e90
Question is

Gunna run a 20x12 rear wheel
What would be a good tire size that would
Clear the wheel well from rear passenger door wheel well to front of the back bumper

Not looking for a crazy stretch tire
Trying to get the most tire height as possible

Did anyone ever run a 315/35rz20 ?

Fundguy1 · 07-22-2017, 02:10 PM

You're joking right?

Fundguy1 · 07-22-2017, 02:19 PM

Widest you can get is 285/25-20. 20x10. Stock tires are 255/35-18. That's 25" in diameter. A 285/25-20 is 1.3" wider, 25.6" tall. You can fit it if you get a wheel thats just the right offset.

A 315/35-20 is 28.7" tall and 2 1/2" wider. I have 305/30-19 On mine, perfect offset, rolled fenders, stretched, barely fits. I have 19x11 et 43 wheels. A 12" wheel is 300 wide. Wont fit without super stretch and camber.

Besides, 20s look ridiculous on a e90 and you need rubber bands to make them fit. Handling sucks, they're heavy so slow, and expensive. Not to mention nobody has run over 305 without a widebody kit or m3.

shadow191 · 07-22-2017, 02:47 PM

He probably should have mentioned his car is a widebody. There's a thread somewhere.

Fundguy1 · 07-22-2017, 03:06 PM

Quote:

Originally Posted by shadow191

He probably should have mentioned his car is a widebody. There's a thread somewhere.

That would make a difference but they're still too tall. A 315/25-20 would be 1.2" taller than oem and might squeeze into a widebody depending on how it was made. Thst would give 3.1" of sidewall. Stock is 3.5" with stock 18s.

Fundguy1 · 07-22-2017, 03:13 PM

Now i see it. By the way, yours is the only non m3 quarter widebody conversion I like. Try the 315/25-20. Measure the extra off what you have taking into account the offset you want. Need suitable fronts to match. 265/30-20 on 20x10 maybe?

kennyray712 · 07-22-2017, 09:42 PM

Quote:

Originally Posted by Fundguy1

Now i see it. By the way, yours is the only non m3 quarter widebody conversion I like. Try the 315/25-20. Measure the extra off what you have taking into account the offset you want. Need suitable fronts to match. 265/30-20 on 20x10 maybe?

How bout a 305/30rz20 ??? What u think

Fundguy1 · 07-22-2017, 10:44 PM

It's
Width×profile×2÷25.4+wheel size= outer diameter
305×.3×2÷25.4+20=27.2. Max outer diameter should be low 26s on normal car. Stock is 25". I say no bueno.

07-22-2017, 08:19 AM	#1
kennyray712 Lieutenant 306 Rep 583 Posts Drives: clean 335i 4door widebody vm t Join Date: Sep 2010 Location: wpb - f.l iTrader: (0)	Need help ... with tire size Thanks for replying 07 e90 Question is Gunna run a 20x12 rear wheel What would be a good tire size that would Clear the wheel well from rear passenger door wheel well to front of the back bumper Not looking for a crazy stretch tire Trying to get the most tire height as possible Did anyone ever run a 315/35rz20 ?
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07-22-2017, 02:10 PM	#2
Fundguy1 Major General 2032 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	You're joking right?
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07-22-2017, 02:19 PM	#3
Fundguy1 Major General 2032 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	Widest you can get is 285/25-20. 20x10. Stock tires are 255/35-18. That's 25" in diameter. A 285/25-20 is 1.3" wider, 25.6" tall. You can fit it if you get a wheel thats just the right offset. A 315/35-20 is 28.7" tall and 2 1/2" wider. I have 305/30-19 On mine, perfect offset, rolled fenders, stretched, barely fits. I have 19x11 et 43 wheels. A 12" wheel is 300 wide. Wont fit without super stretch and camber. Besides, 20s look ridiculous on a e90 and you need rubber bands to make them fit. Handling sucks, they're heavy so slow, and expensive. Not to mention nobody has run over 305 without a widebody kit or m3. Last edited by Fundguy1; 07-22-2017 at 02:28 PM..
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07-22-2017, 02:47 PM	#4
shadow191 Lieutenant Colonel 181 Rep 1,681 Posts Drives: 2017 Volvo XC90 R-Design Join Date: Dec 2012 Location: GA iTrader: (3)	He probably should have mentioned his car is a widebody. There's a thread somewhere.
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07-22-2017, 03:13 PM	#6
Fundguy1 Major General 2032 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	Now i see it. By the way, yours is the only non m3 quarter widebody conversion I like. Try the 315/25-20. Measure the extra off what you have taking into account the offset you want. Need suitable fronts to match. 265/30-20 on 20x10 maybe?
	Appreciate 1 kennyray712305.50 Quote

07-22-2017, 10:44 PM	#8
Fundguy1 Major General 2032 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	It's Width×profile×2÷25.4+wheel size= outer diameter 305×.3×2÷25.4+20=27.2. Max outer diameter should be low 26s on normal car. Stock is 25". I say no bueno.
	Appreciate 1 kennyray712305.50 Quote